<?php

// +----------------------------------------------------------------------

// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]

// +----------------------------------------------------------------------

// | Copyright (c) 2006-2013 http://thinkphp.cn All rights reserved.

// +----------------------------------------------------------------------

// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )

// +----------------------------------------------------------------------

// | Author: liu21st <liu21st@gmail.com>

// +----------------------------------------------------------------------

namespace Behavior;

use Think\Log;

/**

 * 系统行为扩展：页面Trace显示输出

 */

class ShowPageTraceBehavior {

    protected $tracePageTabs =  array('BASE'=>'基本','FILE'=>'文件','INFO'=>'流程','ERR|NOTIC'=>'错误','SQL'=>'SQL','DEBUG'=>'调试');



    // 行为扩展的执行入口必须是run

    public function run(&$params){

        if(!IS_AJAX && C('SHOW_PAGE_TRACE')) {

            echo $this->showTrace();

        }

    }



    /**

     * 显示页面Trace信息

     * @access private

     */

    private function showTrace() {

         // 系统默认显示信息

        $files  =  get_included_files();

        $info   =   array();

        foreach ($files as $key=>$file){

            $info[] = $file.' ( '.number_format(filesize($file)/1024,2).' KB )';

        }

        $trace  =   array();

        $base   =   array(

            '请求信息'  =>  date('Y-m-d H:i:s',$_SERVER['REQUEST_TIME']).' '.$_SERVER['SERVER_PROTOCOL'].' '.$_SERVER['REQUEST_METHOD'].' : '.__SELF__,

            '运行时间'  =>  $this->showTime(),

			'吞吐率'	=>	number_format(1/G('beginTime','viewEndTime'),2).'req/s',

            '内存开销'  =>  MEMORY_LIMIT_ON?number_format((memory_get_usage() - $GLOBALS['_startUseMems'])/1024,2).' kb':'不支持',

            '查询信息'  =>  N('db_query').' queries '.N('db_write').' writes ',

            '文件加载'  =>  count(get_included_files()),

            '缓存信息'  =>  N('cache_read').' gets '.N('cache_write').' writes ',

            '配置加载'  =>  count(c()),

            '会话信息'  =>  'SESSION_ID='.session_id(),

            );

        // 读取应用定义的Trace文件

        $traceFile  =   COMMON_PATH.'Conf/trace.php';

        if(is_file($traceFile)) {

            $base   =   array_merge($base,include $traceFile);

        }

        $debug  =   trace();

        $tabs   =   C('TRACE_PAGE_TABS',null,$this->tracePageTabs);

        foreach ($tabs as $name=>$title){

            switch(strtoupper($name)) {

                case 'BASE':// 基本信息

                    $trace[$title]  =   $base;

                    break;

                case 'FILE': // 文件信息

                    $trace[$title]  =   $info;

                    break;

                default:// 调试信息

                    $name       =   strtoupper($name);

                    if(strpos($name,'|')) {// 多组信息

                        $array  =   explode('|',$name);

                        $result =   array();

                        foreach($array as $name){

                            $result   +=   isset($debug[$name])?$debug[$name]:array();

                        }

                        $trace[$title]  =   $result;

                    }else{

                        $trace[$title]  =   isset($debug[$name])?$debug[$name]:'';

                    }

            }

        }

        if($save = C('PAGE_TRACE_SAVE')) { // 保存页面Trace日志

            if(is_array($save)) {// 选择选项卡保存

                $tabs   =   C('TRACE_PAGE_TABS',null,$this->tracePageTabs);

                $array  =   array();

                foreach ($save as $tab){

                    $array[] =   $tabs[$tab];

                }

            }

            $content    =   date('[ c ]').' '.get_client_ip().' '.$_SERVER['REQUEST_URI']."\r\n";

            foreach ($trace as $key=>$val){

                if(!isset($array) || in_array($key,$array)) {

                    $content    .=  '[ '.$key." ]\r\n";

                    if(is_array($val)) {

                        foreach ($val as $k=>$v){

                            $content .= (!is_numeric($k)?$k.':':'').print_r($v,true)."\r\n";

                        }

                    }else{

                        $content .= print_r($val,true)."\r\n";

                    }

                    $content .= "\r\n";

                }

            }

            error_log(str_replace('<br/>',"\r\n",$content), Log::FILE,LOG_PATH.date('y_m_d').'_trace.log');

        }

        unset($files,$info,$base);

        // 调用Trace页面模板

        ob_start();

        include C('TMPL_TRACE_FILE')?C('TMPL_TRACE_FILE'):THINK_PATH.'Tpl/page_trace.tpl';

        return ob_get_clean();

    }



    /**

     * 获取运行时间

     */

    private function showTime() {

        // 显示运行时间

        G('beginTime',$GLOBALS['_beginTime']);

        G('viewEndTime');

        // 显示详细运行时间

        return G('beginTime','viewEndTime').'s ( Load:'.G('beginTime','loadTime').'s Init:'.G('loadTime','initTime').'s Exec:'.G('initTime','viewStartTime').'s Template:'.G('viewStartTime','viewEndTime').'s )';

    }

}

